Improve root route response with API guidance

Author: karlomikus

routes/web.php

@@ -16,7 +16,7 @@
 */
 
 Route::get('/', function () {
-    return 'This is your Bar Assistant instance. Checkout /docs to see documentation.';
+    return 'This is your Bar Assistant instance. Checkout /docs to see documentation.<br>If you are trying to make a request to the API, make sure you are using the correct endpoint (e.g., /api/cocktails).<br>Also make sure you are using all the required headers: Accept, Authorization.';
 });
 
 Route::get('/docs', function () {